Summary: Compatible with Mac to a certain extent. My Laptop would "crash" and do an immediate reboot. It got to the point where it would reboot while it was trying to reboot. Not the best choice for a Macbook.
Worth every penny memory kit for you Early 2011 MacbookPro!!!
Jimmy Nvrz, Amazon
29 January 2015
Summary: Worth every penny! I have an Early 2011 MacbookPro and I just installed these Dual Memory Channel Kit. I am extremely happy with the extreme improvement that my laptop has. I recommend this to anyone that would like to improve the performance of their computer.
These are 1.5V SO-DIMM DDR3 RAMs...not 1.35V ok!!!
12 November 2014
Summary: FYI: For those of you who "do not" know anything about laptop RAMs, read on please... RAMs for laptops are called SO-DIMM. They have 3 generations, but I am not going to talk about the very old generations. Just these 3 should be just about what people are "still" using.